National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

64°F

18°C

Humidity 50%
Wind Speed S 14 mph
Barometer 30.22 in (1023.5 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 12 Apr 6:53 pm EDT
Extended Forecast for

Millerstown PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Southeast wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 11am. Mostly cloudy, with a high near 76. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Light southwest wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Southeast wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 22 mph.
Monday
A chance of showers, mainly after 11am. Mostly cloudy, with a high near 76. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Light southwest wind. Chance of precipitation is 30%.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 62.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millerstown PA
 40.55°N 77.14°W (Elev. 489 ft)
Last Update:
2:21 pm EDT Apr 12, 2026
Forecast Valid:
7pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation